在...保证下

The strategies of high order sliding mode control and sliding mode control with integral action are proposed. Without losing the virtue of robustness and the ability of eliminating disturbance, these strategies can minimize the chattering phenomenon which is quite common in conventional sliding mode control.

在研究中，提出了高阶滑模控制和带积分的滑模控制方法，这两种方法在保证了常规滑模控制的强鲁棒性和抗扰动能力的前提下，可以在很大程度上削弱抖振，对常规的滑模控制有较大的改进。

In the experiment,by adjusting the manual tunable fiber Bragg grating and control the transmission of the light through the filter band,the operating center wavelength of the fiber lasers could be tuned from 1 047 nm to 1 055 nm and pulse duration at a repetition rate of 4.9 MHz.

实验中，在保证锁模状态稳定的情况下，通过调节可调谐光纤光栅滤波器，使激光器输出锁模脉冲的中心波长在1 047 nm～1 055 nm范围内连续调谐，重复频率稳定维持在4.9 MHz。

In the HGA , heuristic algorithm is used to produced initial population , self-adaptive parameter are used in copy operator, crossover operator and mutation operator .Simulated annealing algorithm is also cited ,and only some excellent chromosomes are operated by SA . In this way, HGA could improve its search ability at cost of a little more run time.

混合遗传算法在产生初始种群时引入启发式方法，采用自适应遗传参数和交替使用两种交叉算子；在搜索方式中加入模拟退火机制，采用只对部分优秀染色体进行退火操作的新策略，这样在保证增强寻优能力的情况下尽量减少运算量。

In the aspect of the feasibility, we divide telecom market into three degrees market from the point of view of industry chain, and at the same time point out that we should open roundly to private capital in second-degree and third-degree market. On the premise of guaranteeing the efficiency of first-degree market, capital should be introduced reasonably.

在可行性方面，我们开拓性的将电信市场从产业链的角度出发划分为三级市场，同时指出在二级、三级市场应该全面向民营资本开放，一级市场，在保证效率的前提下，合理引入民营资本。

In conclusion, If the volume of the first step and second fermentation liquid were measured guarantee errors at 1% including, Aim at the current single canister to proceed the hypothesis that optimization combine control in time next, the tout a fait can be made present I the corporate and single canister produces the accumulation of the 2- keto - L- gulonic acid obtains to leading the level 84～ 86% of the period and can also be controlled at the same time within the sphere of efficient 36～40 h.

总之，在保证一步发酵醪液质量及二步发酵的体积误差在1%以内时，针对目前的单罐及时进行优化组合控制的前提下，完全可以使目前我公司的单罐产 2-酮基-L-古龙酸的积累达到领先水平84—86%。同时发酵周期也可以控制在最经济的36---40 h范围内。

On the contrary, adopt the conventional thermoset solvent ink after coating metal business card printing and membership card after products must be produced at a high temperature to baking, so that the metallic-coated surface malactic, thus ensuring ink in coating better attachthemselves.

相反，采用传统的热固型溶剂油墨在经过涂布的金属上制卡和会员卡制作之后，产品必须在高温下进行长时间的烘焙，使金属涂层的表面软化，从而保证油墨在涂层表面更好地附着。

In course of trial-producing thermo-bonded polyester battings, firstly, the mass fraction of hollow polyester fibers is determined by analysing test results to insure the battings' compression elasticity.

论文在细旦涤纶／中空涤纶复合絮片的试制过程中，首先在保证絮片压缩回弹性较好的前提下，通过分析测试结果，确定中空涤纶的含量应该在40％左右。

The fifth plan was desirable one for the development of medical barrier fabrics with fine comprehensive properties. In this plan, one-layered texture with differential face, which made fibers disposed in three layers, was selected as texture of upper and inferior layers, therefore the difficulties of weaving were reduced. Moreover, because superfine fibers with better performance and higher price were disposed only in liquid-repellent layer and ordinary polyester filaments with smaller fineness and lower price were disposed in inferior layers, the thickness and cost were reduced based on fine liquidrepellency.

通过对比分析得出，第五方案是在开发具有优良综合性能的医用屏蔽织物时最可取的一种设计方案，它的上、下层均采用了单层的异面组织，在高密下使纤维在织物呈三层配置，大大地降低了织造的难度，并且此方案仅在拒液层的经、纬向配置了性能较好、价格较贵的超细涤纶长丝，而在织物的下层配置了纱支较细、价格较低的普通涤纶长丝，这样就在保证织物具有优良的拒液性能的基础上降低了织物的厚度和成本。

In the project of cross-under the highway with pipe roof and culvert box method,the interspace between culvert box and pipe roof is limited by several factors.

管棚-箱涵法下穿越高速公路工程中，管棚与箱涵的建筑空隙受到多方面因素影响，合理的建筑空隙在保证不增加成本的条件下，为施工带来方便。

In the project of cross-under the highway with pipe roof culvert box advancing method,the interspace between culvert box and pipe roof is limited by several factors,rational interspace will bring convenience for the construction,this paper discuss the rational interspace s based on the project of the separating overpass of Zhengzhou-Kaifeng urban route way through the Jing-Gang-Ao highway.

管棚-箱涵法下穿越高速公路工程中，管棚与箱涵的建筑空隙受到多方面因素影响，合理的建筑空隙在保证不增加成本的条件下，为施工带来方便。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。